Home / 210,384,544.80-315,576,817.20-172,120,792.80

Finding the Fourth Proportional to 210,384,544.80, 315,576,817.20 and 172,120,792.80

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Solution

The fourth proportional to 210,384,544.80, 315,576,817.20 and 172,120,792.80 is: 258,181,189.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,384,544.80 : 315,576,817.20 = 172,120,792.80 : x
  2. Step 2: Convert to fraction form
    210,384,544.80/315,576,817.20 = 172,120,792.80/x
  3. Step 3: Cross multiply
    210,384,544.80x = 315,576,817.20 × 172,120,792.80
  4. Step 4: Simplify right side
    210,384,544.80x = 54,317,331,965,764,680
  5. Step 5: Solve for x
    x = 54,317,331,965,764,680/210,384,544.80
  6. Step 6: Final answer
    x = 258,181,189.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.